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Map P,ac iom WGSB4 Web MercaOr Sphere) IEnG 3857) SP202200003 Dayfily Preschool 4330' Legend INole some gems on map may n rl aplsar m loganol 57-4 4294e Parcel Into -- ❑ Parcels 57-23 57-24A f" 4348,. 57-24 a M N ar+ / 57-60 Is Dr for 57-29D3 57-29D4 1547r 57-25 57-26 4283 57-29A `4 42811 J 4297 57-30F 57-30B 57-59 57-60A 57-30E \ / VVV ' %� cls.wee cenyrapnrc I]au xr .,�.w..I6emane.oFg"he rao /N 14]E1296�50]2 nnyce ma naropog,a,, or comours, .1 ny cepCpon OF p,a. imprWered,property Imm; or honest is For Worst interventinterveinterventioaddro n only aspal t CB and forma deagn maddicalion of roustrucron of improvBmenk b real properly or for race plain northeastern, May 12, A41 Map elements may sca a larger than GIS data measured m the map or as pmvNad on IN data doxnMad page due W lne pmlammn useo. Map Worecoon WGSU Wen Mercator lamlaary Sphere) IEPSG 3657) � I / ' n 4� Pf� 1 All, - Fli 6/15/2022 Capacity Assessment �e "ec"� Onsite Wastewater System (.�h o�acjP 0�6Mountain Plain Baptist Church�Moving Preschool from Church to RectoryaAesstoNP,J� Physical Address: 4297 Old Three Notched Road Charlottesville, VA 22901 ATTN: VDH — Albemarle County Assessment conducted by Old Dominion Engineering (ODE) Facility Usage The church is located on TM 57-26 (2.34 acres) and the rectory is located on the adjacent parcel TM 57-29A (1.69 acres). The existing preschool has been conducted in the church. They are moving the preschool to the rectory building. Minor improvements to the rectory building were done, however no building permit was required. The existing septic system for the rectory is quite old (installed in 1966). The septic system consists of a 1000 gallon septic tank and 800 square feet of drainfield (4 trenches, 2' wide, 100' long, approximately 24" deep). The septic system was for a 3 bedroom house. The rectory water supply is from the church well (no records on file). The new usage of the facility is for a preschool (Daylily Preschool). The preschool usage projections are: • 30 - 50 kids o Starting at 30 kids and would like to grow to 50 kids 3 - 4 staff This capacity assessment was done to determine if the rectory onsite wastewater and treatment system can handle the new usage of a preschool. Current Onsite Wastewater System Condition 1. Drainfield - No surfacing was found in the dispersal area during the inspection on 6/8/22. 2. Septic Tank - Inspection of visual components were satisfactory. 3. The cleanout is 4" SCH 40 PVC. It appears as if the sewer pipe has been replaced with modern materials. Page I of 3 Old Dominion Engineering —366 South Linden Avenue - Waynesboro, VA 22980-olddomeng@melos.net Estimated Water Usage and Wastewater Strength The wastewater characterization is based upon the following information. The peak septic usage is calculated at full capacity: • Preschool Children - 50 • Preschool Staff - 4 Water Use Band Wastewater Strength Unit Bates and Basis - Be li Preschool Water 800/TSS UsageU.S. Water Usage Edimale Basis Strenalb Boo TSS Strength Bass ("Woo) (mar') Water usage mUMlonna of similar hcnmes (with assay hctop' Per 1NAC 5E10S70 BOD ar0ay comeeadho to 6 USEPA ones Waslewaler Treatment Systems Manual Tatin 3- 300 concentration- 5 Sclml without cafeteria, "or or ahowma � forep 517 Solvent withaul stands. aM In or without cyinno s gpdstuden0 Prordsool Stan 10 Per USEPA Onslle Wastewater TrealmeM Systems Manual 2<0 10970 SOD#1Day conwmed to F-n. Table 3d ONce Emgpyae L16 gpdempbyaeDace Buibnq Empbytt - Water study, door Hunters Way PRschcol and Pepenls School per of which are Waled,n forwards County. Hunters Way PrescMpl used an swings of 3.4 gWMmon am Repents SCMol used an merage of 4.7 We. Both sl Wive were 3 months. tbn damogmphrc5 of Hunter Way Preseluol was 36 chosen and teachers. we grows 7 moh11u3 roars and 45 years. 5 days per week. 11 fpurs per day. This demegraph¢S of Regents &.1 was So Students add IeacreR; R911, gentle. typical school year August 10 June. Factor of Safety e[canis 1.6r 1.3. 6 gpdrparson is consis lent with USEPA Onsile Wastewater Teatmenl Systems Manual Table 3.5 Day Servos. without insiders, gym, or. shovers5-17 d diperson. Peak Water Usage and Wastewater Strength Estimate - Daylily Preschool or edre C C 0 as Water Usage Activity is g`r _ 'y m m a 3 a 3 rn E E or E e e ` Preschool Children 50 6 300 300 0.7 Preschool Staff 4 10 40 240 O.t Total 1 340J 292 0.8 The wastewater effluent strength will not exceed residential strength for BOD or TSS. The wastewater strength is estimated at 292 mg/1 BOD/TSS. Water usage is estimated at 340 gpd. Page 2 of 3 Old Dominion Engineering — 366 South Linden Avenue - Waynesboro, VA 22980 - olddomeng@ntelos.net 6/15/2022 Current Onsite Wastewater System Capacity 1000 gallon septic tank capacity @ 2 day detention time V 1000gal _ Q B 2days = 5009pd Estimated peak flow of 340 gpd < 500 gpd - OK Drainfi'eld Capacity per Day at Septic Tank Effluent Drannfield Capacity of Original VDH permit is 450 gpd Design HLR = .56 GPD/SQFT Originally Sized for a 3 BDR Home Corresponds to a current perc rate of 30-35 mpi Proposed Hydraulic Loading = 340 gpd Proposed HLR = .425 GPD/SQFT' Corresponds to a current perc rate of 45-50 mpi Adequate area is available on the property for a repair drainfield Conclusions The existing septic system is adequate for the new usage of a preschool. The well permitting will be required to be upgraded from a private well to a non -tom c=nt non -community well. The owners have contacted VDH-ODW and begun the process of converting the water system permit. Recommendations The drainfield is quite old. Due to the age of the drainfield ODE makes the following recommendations: It would be prudent for the Church to financially plan for an eventual drainfield replacement. The preschool and church should monitor the performance of the drainfield (i.e. observe any soggy spots developing during mowing would be adequate). Monitor the water usage at the rectory on a monthly basis and determine the daily water usage for preschool usage days (total water used during the month divided by the total number of days the preschool was open). Verify that the daily water usage is less than the estimated amount (340 gpd). Avoid growing the preschool too large. The more kids at the school, the more water used and delivered to the septic system. The less water put in the septic system, the longer the drainfield will last. Page 3 of 3 Old Dominion Engineering — 366 South Linden Avenue - Waynesboro. VA 22980 - olddomeng@ntelos.net 7/12/22, 2:19 PM Yahoo Mail - Daylilly Preschool: Found NTNC Waterworks Daylilly Preschool: Found NTNC Waterworks From: Valencia, Taylor(taylor.valencia@vdh.virginia.gov) To: Ifcla m a n @ya ho o.co m Date: Tuesday, July 12, 2022 at 01:37 PM EDT Good Afternoon Elizabeth, Our office is moving forward with "grandfathering" the Daylilly Preschool facility as a nontransient noncommunity (NTNC) waterworks system to be regulated by our office. A public waterworks system identification number has been created for your waterworks system (PWSID 2003525). Over the next few weeks, I'll help you through the permitting process and all required submittals to our office in order for us to issue you a formal standard waterworks operation permit. The closer we get to issuing you a standard waterworks operation permit, we will contact you to schedule a formal inspection (also called a sanitary survey) of the system. Our in -person meeting on July 8th served as an "initial visit" but not a formal inspection. Your facility should be permitted by the end of this year. However, we will require sampling requirements to commence once the facility is serving 25 or more people. Sometimes, the paperwork side of things can take longer than expected but the sampling requirements begin as soon as the system is classified as a public system that is serving 25 or more people for 60 or more days out of the year. Please let me know if you have any questions! Taylor L. Valencia District Engineer Virginia Department of Health Office of Drinking Water - Lexington, VA Phone: (540) 463-0421 about:blank 1/1 0.1" ay . 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